Jewelry-fastening.



Patentediy June 26, |900.

www M UNITED STATES PATENT OFFICE.

CHARLES T. CROSSMAN, OF CHARTLEY, MASSACHUSETTS, ASSIGNOR TO FREEMAN,DAUGHADAY do CO.

JEWELRY-FASTENING.

SPECIFICATION forming part 0f Letters Patent No. 652,249, dated June 26,1900. Application filed February 16, 1900. Serial No. 5,424. (No model.)

T0 @ZZ whom, it Wtctg/ concern.-

Be it known that I, CHARLES T. CRossMAN, a citizen of the United States,residing at Chartley, in the county of Bristol and State ofMassachnsetts,have invented a certain new and useful Improvement inJewelry-Fastenings, of which the following is a specification, referencebeing had therein to the accompanying drawings.

My invention relates to improvements in j ewelry-fastenings wherein theparts are so arranged that they coact without the use of a key or otherdetached implement. Its objects are to provide a diminutive lock for useupon chains, bracelets, and otherjewelry novelties which shall serve apractical Vas well as ornamental purpose; also, to construct such afastening with a minimum number of parts, all of which can be stamped orstruck from sheet metal and assembled without fastenings. I attain theseobjects by the construction shown in the accompanying drawings, inwhich- Figure l is a front side elevation of my fastening; Fig. 2, aperspective view of the case; Fig. 3, a like View of the back blank;Fig. 4, a perspective View of the hasp, and Fig. 5 a similar View of thebearing-p1ate- Fig. G is a side elevation of the assembled parts withthe face and surface plates removed. Figs. 7 and 8 are detail views ofthe bolt and spring, respectively; Figs. 9 and l0, perspective views ofthe face and surface plates, respectively; and Fig. 11 is a transversesection of the completed fastening on line mx, Fig. 1.

Similar letters refer to similar parts throughout the several views.

The construction and assemblage' are as follows: A nearly heart-shapedcase A is struck out-of thin metal, with a retaining-rim perforated withtwo openings b b" in its upper surface, which admit engagement of thehasp C, cut or struck with a circular head c and beak c. Thebearing-plate D is cnt or struck with an irregular outline adapted tothe free play of the adjacent movable parts, the recessed portions e'",f, and c". furnishing bearings for the bolt, spring, and circular haspend, respectively. This bearing-plate is placed within the casing afterthe hasp Next is introduced the pawlis inserted.

shaped bolt E, also cut in one piece, having a swaged stem e rising fromits top surface a sufficient distance to project slightly beyond theplane of the face-plate when all the parts shall have been assembled.One of its terminations c is hooked and the other is circular, e", thelatter fitting in the recess 6', and thereby pivotally securing the boltto the plate D. The flat spring F or a section of rubber is inserted tobear upon the rear edge of the bolt E. The plane of the parts thusassembled is slightly below the top plane of the case A,and over them isplaced the faceplate G, cut with a central opening g, said plate lyingush with the'edge of the case A and furnishinga more extendedsoldering-surface thanthe case edge alone. Finally, the surface plate H,centrally perforated, as at h, is soldered to the edge of the case A andalso to the plate G to complete my device.

It is sometimes desirable to place a blank B within the case A. If so,this is done before introducing any of the other parts.

From the above description the operation of my device is obvious. Theprojecting stem e is pressed by ones ngers to one side to disengage thehasp-beak c and hooked bolt end e. The pressure of the spring F orrubber against the back of the bolt E serves to force its hooked end einto engagement when the hasp-beak is forced downwardly into the case.

It is evident that besides supplying the objects hereinbefore enumeratedthis fastening possesses advantages sought byjewelers, but not hithertoattained. plate besides retaining the moving parts forms a stiening andbacks the thin walls of the lock, thus prevent-ing crushing or evendenting.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a fastening ofthe class described, the

combination with a casing, of a hasp provided at one of its ends with ahead and at its other end with a beak, a bearing-plate arranged withinsaid casing and provided with a plurality of recesses, said head fittingin one of said recesses, and a bolt also arranged in the casing andadapted to engage said hasp, said bolt also fitting in one of said re-Thus the bearing- IOO the bearing-plate, and an operating-stem carriedby said bolt and projecting through the casing.

3. In a fastening of the class described, the combination with a casing,of a hasp pro-g vided at one of its ends with a head and at; its otherend with a beak, a bearing-plate arranged within said casing andprovided With a plurality of recesses, a bolt also arranged? in thecasing and adapted to engage saidl hasp, said bolt also fitting in Aoneof said re-f cesses, whereby the same is pivotally connected to thebearing-plate, and means for urging said bolt into engagement with thehasp. A

4. In a fastening of the class described, the

combination with a casing, of a hasp pro-. vided at one of its ends witha head and at its other end with a beak, a bearing-plate arranged withinsaid casing and provided with a plurality of recesses, a bolt alsoarranged in the casing and adapted to engage said hasp, said bolt alsofitting in one of said recesses, whereby the same is pivotally connectedto the bearing-plate, and a spring for urging said bolt into engagementwith the hasp.

5. In a fastening of the class described, the combination with a casing,of a hasp provided at one of its ends with a head and at' its other endwith a beak, a bearing-plate arranged Wi'thin said casing and providedwith a plurality of recesses, said head fitting in one of said recesses,a bolt also arranged in the casing and adapted to engage said hasp, saidbolt also fitting in one of said recesses, whereby the same is pivotallyconnected to the bearing-plate, means for urging said bolt intoengagement with the hasp, and means for operating the bolt to releasethe same from such engagement.

6. In a fastening ot" the class described, the combination with acasing, of a hasp provided at one of its ends with a head and at its'other end with a beak, a bearing-plate arranged within said casing andprovided with a plurality of recesses, said head fitting in one of saidrecesses, a boit also arranged in the casing and adapted to engage saidhasp, said bolt also tting in one of said recesses, whereby the same ispivotally connected to the bearing-plate, a spring for urging said boltinto engagementwith the hasp, and an operating-stem carried by the boltand projecting through the casing for releasing the bolt from engagementwith the hasp.

In testimony whereof I afx my signature in presence of two witnesses.

. CHARLES T. CROSSMAN.

Witnesses:

I-IoRATIo E. BELLoWs, Hoi/IER L. LANE.

